melp算法语音编码

/* ================================================================== */ /* */ /* Microsoft Speech coder ANSI-C Source Code */ /* SC1200 1200 bps speech coder */ /* Fixed Point Implementation Version 7.0 */ /* Copyright (C) 2000, Microsoft Corp. */ /* All rights reserved. */ /* */ /* ================================================================== */ /*------------------------------------------------------------------*/ /* */ /* File: qnt12_cb.c */ /* */ /* Description: quantization codebook for 1200bps */ /* */ /*------------------------------------------------------------------*/ #include "sc1200.h" /* bp_index_map[] maps 0, 8, 12 and 15 onto 0, 1, 2 and 3. */ /* inv_bp_index_map[] reverses this mapping. The declared dimension 16 is */ /* 2^(NUM_BANDS - 1). */ Shortword bp_index_map[16] = { 0, 0, 0, 0, 0, 0, 0, 3, 1, 1, 1, 3, 2, 3, 3, 3 }; Shortword inv_bp_index_map[4] = { 0, 8, 12, 15 }; Shortword vvv_index_map[4] = { 3, 5, 6, 7 }; Shortword pitch_uvflag_map[9] = { 0, /* UUU (1) */ 1, /* UUV (99) */ 100, /* UVU (99) */ 199, /* UVV (512) */ 711, /* VUU (99) */ 810, /* VUV (512) */ 1322, /* VVU (512) */ 1834, /* VVV (2048) */ 3882 /* end of CB */ }; Shortword pitch_vq_cb_vvv[PITCH_VQ_LEVEL_VVV * NF] = { /* Q12 */ 5764, 5782, 6975, 6370, 5389, 7926, 6939, 7332, 8027, 8468, 8136, 7304, 5473, 5487, 5569, 8054, 5886, 5968, 8167, 6127, 7818, 9020, 8174, 7243, 6260, 7072, 6500, 8099, 8188, 7129, 5901, 8835, 5793, 9027, 8095, 7354, 5380, 5413, 6957, 8050, 8070, 6025, 6628, 6834, 7289, 8688, 7934, 8119, 6408, 6441, 6607, 7197, 6480, 8341, 6074, 7327, 7248, 8618, 8648, 8600, 5890, 6010, 5888, 8671, 6819, 6906, 7758, 7683, 7329, 8933, 9025, 8834, 6408, 6710, 6839, 7763, 8039, 7604, 6367, 8896, 6399, 8508, 8474, 8304, 6414, 5385, 6376, 7752, 7782, 6139, 7049, 7111, 6799, 7023, 7931, 8461, 6369, 6442, 6518, 6084, 6168, 7707, 6949, 8054, 6954, 8158, 7855, 8309, 6042, 6021, 6030, 7425, 6429, 6464, 7434, 7128, 6988, 8396, 8356, 7416, 6816, 6821, 6825, 7573, 7641, 7493, 7262, 7985, 6909, 8978, 7010, 7941, 6413, 6344, 6265, 7823, 7755, 6956, 6991, 7023, 7055, 6991, 7460, 8499, 6409, 7134, 7225, 6534, 6628, 8520, 7218, 8312, 8036, 8726, 7711, 8061, 6167, 6210, 6204, 6948, 6691, 6997, 7184, 7236, 7367, 8186, 7974, 8640, 6948, 6937, 6865, 8062, 7422, 7810, 7797, 8846, 7465, 8992, 6655, 8323, 6257, 6326, 5826, 7864, 7584, 7559, 7062, 7191, 7304, 6951, 7680, 9010, 5484, 5571, 7651, 6278, 5406, 8858, 6468, 7519, 8136, 8143, 7637, 8036, 5389, 5393, 5729, 8138, 5436, 6703, 7975, 5445, 8768, 9022, 7825, 8712, 7122, 6446, 6485, 8422, 7773, 7810, 6635, 7982, 6240, 9018, 7369, 7459, 5980, 6103, 7190, 8420, 7004, 7543, 7132, 7143, 7783, 7745, 6989, 8977, 6106, 6322, 6491, 6790, 6829, 8228, 5434, 7680, 7972, 7903, 8163, 8279, 5794, 5778, 6363, 8180, 6426, 7559, 7263, 7348, 8083, 8465, 8495, 8761, 6717, 6812, 6696, 7868, 7932, 7685, 7155, 9010, 7039, 9024, 7745, 8293, 6109, 6137, 6191, 7173, 7983, 6266, 6966, 7294, 7270, 7057, 8358, 8410, 6167, 6427, 6679, 5420, 6985, 8415, 6565, 8912, 7916, 7734, 8982, 8333, 5605, 5673, 6005, 7449, 6282, 6237, 7342, 6996, 8614, 8944, 8370, 8476, 6720, 6794, 6881, 7678, 7994, 7657, 6698, 8063, 6923, 9018, 7577, 7913, 6678, 6393, 6463, 8320, 7812, 6958, 7028, 7096, 7224, 7346, 7718, 9011, 5807, 5868, 7774, 7004, 6672, 8970, 5992, 7762, 9027, 8274, 8036, 8014, 5894, 5984, 6155, 7186, 6741, 7098, 7128, 6973, 7590, 8778, 7921, 9016, 6932, 6926, 7015, 7430, 7733, 8218, 7528, 8979, 8033, 9024, 7116, 9023, 6389, 6543, 6368, 6904, 7630, 7206, 7081, 7248, 7402, 7087, 8538, 9024, 5775, 5999, 7405, 5977, 6121, 8673, 7303, 7589, 7953, 7868, 8023, 7964, 5478, 5526, 5671, 7783, 6272, 6301, 8051, 6241, 8021, 9024, 8798, 7592, 6685, 6351, 6675, 7878, 7784, 7534, 6311, 8114, 6461, 8855, 7515, 6948, 5689, 5700, 7003, 8770, 7468, 6479, 7199, 6957, 7320, 8230, 7380, 9021, 6503, 6590, 6835, 7567, 6956, 7842, 6782, 7646, 7900, 8036, 8081, 8092, 5916, 6280, 5957, 8038, 7180, 7171, 7235, 7480, 7403, 8552, 8965, 8916, 6969, 6968, 6969, 7826, 7845, 7870, 7175, 8792, 7163, 8807, 7841, 7716, 6894, 6522, 6912, 7993, 7437, 6954, 7265, 7263, 7289, 6979, 8294, 9012, 6336, 6368, 6536, 6135, 6357, 8199, 6761, 8580, 7587, 7840, 8163, 8106, 5870, 5856, 5942, 7313, 6644, 6569, 7820, 6979, 7963, 9022, 9025, 7726, 6690, 6657, 6642, 7372, 7463, 7593, 6835, 7612, 6906, 9025, 6295, 7848, 6606, 6462, 6385, 7758, 8256, 6979, 7151, 7147, 7181, 7949, 7785, 8612, 5766, 6383, 6493, 6658, 6862, 8549, 6604, 7931, 8402, 7878, 7961, 8129, 6024, 6064, 6116, 7049, 6962, 6919, 7370, 7257, 7713, 8264, 8972, 8087, 7019, 6982, 6957, 7723, 7765, 7804, 7506, 8075, 7830, 8084, 6955, 8164, 6945, 6944, 5381, 7747, 7504, 6921, 7302, 7354, 7395, 6966, 7933, 9000, 5742, 6295, 6600, 5630, 5634, 8863, 7002, 8154, 7647, 7666, 7928, 7862, 5583, 5638, 5731, 7561, 5600, 7031, 7381, 5983, 7951, 8355, 8523, 7855, 6756, 6421, 6339, 7926, 7441, 7372, 5908, 8003, 5923, 8687, 7185, 7175, 6341, 5556, 5565, 8997, 6611, 6536, 6985, 6890, 6899, 7959, 6956, 8398, 6378, 6529, 6675, 7031, 6736, 7726, 6662, 7803, 7836, 7936, 7951, 7952, 5728, 5735, 5795, 8161, 6561, 7041, 7327, 7736, 7694, 8190, 9027, 9026, 6805, 6578, 6418, 7887, 7965, 7473, 7447, 9006, 7075, 8853, 7884, 7911, 6428, 5701, 5679, 7038, 8169, 5871, 7222, 7514, 6969, 6228, 8777, 9028, 5750, 6206, 6611, 6079, 6109, 8834, 6064, 8887, 7860, 7726, 8007, 7944, 5656, 5741, 5901, 7437, 6620, 6643, 6701, 7209, 7761, 8532, 8811, 8518, 6662, 6717, 6661, 7690, 7895, 7511, 6174, 7998, 6867, 9000, 6945, 8015, 6121, 6227, 6125, 8052, 8377, 6713, 6895, 7004, 7084, 7535, 8063, 8997, 5463, 6972, 7289, 6921